Annealing-oven.



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ANNBALING OVEN.

APPLICATION FILED APR. 9. 1906.'

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- Patented Aug. 10, 1909.

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A. VEGHTE. ANNBALING OVEN APPLICATION FILED APR. 9. 1906.

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A. VEGHTE. ANNEALIN G OVEN.

APPLICATION FILED APB. 9. 1906. 930,507. Patented Aug. 10, 1909.

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` A. VBGHTB. AN NEALIN G OVEN.

Patented Aug. 10, 1909. 7 SHEETS-SHEET 7.

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AUGUSTUS vEenTE, or ALBANY, NEW YORK, AssiGNon To TROY MALLEABLE IRON co., or TROY, NEW Yoan-'ii `CORPORATION or NEW YORK.

ANNEALiNG-ovnn.

i Specification of Letters Patent.

PatentedV Aug. 10, 1909.

Application led April 9, 1906. Serial No. 310,613.

To all whom it may concern: j

Be it known that I, AUGUSTUS VEGi-ITE, a citizen of the Unitedy States, residingV at Albany, county vof Albany, and State of New York, have invented certain new and'useful improvements in AnnealingOvens, of which the following is a specification.

rPhe invention relates to such -improvements and consists of the novel construction and combinationv of parts hereinafter de` scribed and subsequently claimed.

Reference may be had to the accompanying drawings, and the referencecharacters marked thereon, which form apart of this specification. y

Similar characters refer to similar partsv Fig. 1, showing another form of oven em` bodying my invention. Fig. 5 is a central, vertical, longitudinal section of the same taken on the broken line 5 5 in Fig. 4. Fig.

l(l is a vertical section of the same taken on the broken line G in Figs. l and 5. Fig..

7 is a vertical section of the same takenpon the broken line 7 7 in Fig. 4. v

This invention relates to improvementslin inalleableizing and annealingovens of the class adapted to receive directly the articles to be annealed or made malleable, dispensing with the use of sa-ggars or other separate receptacles for the articles. i

rllhe principal object of the invention is to provide an oven particularly adapted for receiving such articles to be annealedV or made malleable, and to economically use the heat admitted to the oven.

Referring to Figs. 1, 2, and 3 of the drawings wherein l have shown one form of oven embodying my invention, 1 1, represents a series of separate furnaces arranged at in tervals along opposite sides of the oven adjacent to the several side walls 2 2 which are made hollow, each of said hollow walls forming a substantially continuous fine, 3, extending throughout the length of the side of the oven, and vertically from the floor of the oven, upwardly any desired distance, said flue being Open at its upper end to the dome, 4, of the oven chamber. The hollow side wall is braced at intervals by cross pieces 5.

At a point opposite the fire-box, 6, of each furnace, `1, l: project a horizontal flue, 7, from the fire-box through said side wall, opening into the oven chamber, permitting the gaseous products of combustion to pass from the lire-box into the oven. Extending longitudinally of the middle of the oven, parallel with the side walls, is a hollow bridge-wall, 8, containing a main flue, 9, and an outlet flue, 10, the latter extending along `the topy of the bridge-wall from one end thereof, where it communicates with the main flue, 9, to the other end thereof, where it extends downwardly and communicates witha fine, 11, leading exteriorly of the oven to the stack, not shown.

A plurality of horizontal lues, 12, extend across the space between each side-wall, and the bridge-wall, connecting the respective side wall fines, 3, with the main flue, 9, in the bridge-wall. The lines, l2, are preferably made removable so as to adapt them to be built into the mass of castings, etc., as the oven is yfilled or charged, and to be removed wit-hthe charge after the malleableizing Or annealing operation is completed. They may, however, be permanent'iiues if desired., and `may be made of lire-clay or metal as desired. lf the flues, 12, are made permanent,

Athen the contents of the oven will be packed around them in inserting the charge.

In the operation of the oven, the space between thc bridge wall and respective side walls is filled with a mass of castings and suitable ceinenting or binding material, packedaround the fines, 12, to a point, adj acent to the side walls, just below the level of the, yhorizontal fines 7. lf desired, the contents of the oven may be rounded up along the middle portion thereof, to entirely cover the bridge-wall 8. The oven having been thus charged, is closed at its ends by means of doors or barriers, 13, after which the heated gases are permitted to pass from the fire-boxes of the furnaces through the lines, 7 into the oven chamber. The gases thus introduced at one side of the furnace pass across the furnace over the bridgevwall, 8,' and downwardly through the flue, 3, in the opposite side wall of the furnace, whence they pass through the fines, 12, to the main flue, 9, in the bridge-wall, and thence llt) through the escape flue, 1, to' the stack 'flue 11.V

Any desired number of furnaces, and horizontal fines, 7, and, 12, may be employed.

In Figs. 4, 5, and 6, I have shown another form vof furnace embodying my invention, the'con'struction being substantially the saine as above described, so far as concerns the series of furnaces, l, side-wall-ues, 8', and horizontal flues, 7. The bridge-wall, however, differs from that above described in that it extends below the ylevel of the floor of the furnace, and contains but a single flue, 15, which con'nnunicates with an outlet flue, 15, which divides and extends in two branches beneath the floor of the oven to the opposite endr thereof, where said branches unite connecting with theiue, 17, leading to the stack, not shown. Horizontal fiues, 18, corresponding with thev horizontal flues, 12, in the construction irst above described, connect the respective sid'e-wall-flues, 3, with the bridge-wall-fiue, 15, two rows of said horizontal tlues, 18, being shown. The oven is charged in the manner above described and the heated gases enter through thefiues,

7, at one side of the oven, and pass tothe other side, where they descend through the flue, 3, in the side wall opposite that at which they entered. The gases then pass from the respective lines, 3, through the horizontal flues, 1S, into the bridge-wallflue, 15, whence they pass through the escape flue, 16, to the stack-flue 17.

That I claim as new and desire'te secure by Letters Patent is- 1. In an annealing oven, the combination with side walls each containing a iiue open at its upper end to the dome of the oven; of a furnace on each side of said oven; a flue leading from each of said furnaces interiorly of the oven at a point near the upper end of the neighboring side wall-flue; a bridgewall provided with a flue extending along the oven between said side walls; flue-connections between the respective side-wallflues and bridge-wall-flue; and a flue leading from said bridge-wall-flue to` the stack.

2. In an annealing oven, the combination with a side wall having an outlet flue therein, open at its upper end to the dome of the oven; of a furnace located exteriorly' of said side-wall;v and a. flue leading from said furnace through said side-wall-flue and opening interiorly of the oven.

3. In an annealing oven, the combination with the arched dome or roof; of the opposite side walls, each provided with a flue, open at its upper end to the dome; a furnace on each side of the oven; and a flue leading from each of said furnaces interiorly of the oven at a point near the upper end of the neighboring side-wall-flue.

et. In an annealing oven, the combination with the opposite side walls provided each with an inlet Hue and an outletiue, open to the dome of the oven; of a hollow bridgewall extending along the middle of the oven between said side walls; and means for transmitting currents of heated gases through the respective side-wall-iues and hollow bridge-wall. Y

5. In anannealing oven, the combination with the opposite side walls, each provided with a flue; of a hollow bridge-wall extending along the oven between said side walls and provided with a main flue and an outlet Hue communicating with the main flue; and flue-connections between the main bridgeA wall-fine and the respective side-wall-flucs passing through the furnace chan'iber.

6. In an annealing oven, the combination with the opposite side walls, each provided with a flue open at its upper end to the dome of the oven; a furnace on each side of the oven; and a tiue leading from each furnace through the neighboring side-wall-flue and open to the dome near the open upper end of said side-wall-flue; of a bridge-wall extending along the oven between said side walls and provided with a flue; line-connections extending through the furnace chaluber between said bridge-wall-flue and respective side-wall-flues; and an outlet lue leading from said bridge-wall-llue,

In testimony whereof, I have hereunto set my hand this 5th day of April, 1906.

AUGUSTUS VEGHTE.

lVitnesses FRANK C. CUnris, E. M. OREILLY. 

